Galileo once famously described the universe as a great book “written in mathematical language and its characters are triangles, circles, and other geometrical figures.” Unfortunately, it’s a language ...

Algebra uses letters and symbols in the place of numbers and can be used to simplify expressions. Algebraic notation close algebraic notationA series or system of written symbols used to represent ...

Algebra uses letters to represent unknown values. Unknown values are commonly represented by the letters x and y. There are several principles you need to know to be able to use algebraic notation.